PC specific controls settings in the Pause Menu include:
Mouse Sensitivity
Mouse Wheel Sensitivity
Mouse Aim - Hold / Toggle
Invert Mouse - Off / On
Always Sprint - Hold / Toggle
Crouch - Toggle / Hold
KEYBOARD / MOUSE:
FRONT END
Enter / Exit Pause Menu - Esc
Up / Left / Down / Right - Arrow Keys
Accept - Enter
Map Zoom - Mouse Wheel
Place Waypoint - Right Mouse Button
Grab And Drag Map - Left Mouse Button (Hold) + Mouse Movement
GENERAL
Change Camera - V
Cell Phone (Take Out) - Up Arrow
Cell Phone (Put Away) - Backspace
Radar Zoom - T
Look Behind - C
Zoom In (While Aiming) - Wheel Up
Zoom Out (While Aiming) - Wheel Down
Text Chat Team - U
Text Chat All - Y
Definition - P
Clip Capture - F2
ON FOOT
Sprint - Left Shift
Jump - Space
Attack / Shoot - Left Mouse Button
Enter Vehicle - F
Action - E
Next Weapon - Wheel Up
Previous Weapon - Wheel Down
Crouch Left - Left Ctrl
Enter / Exit Cover - Q
Reload - R
Zoom In (While Aiming) - Wheel Up
Zoom Out (While Aiming) - Wheel Down
Move Right - D
Move Left - A
Move Up - W
Move Down - S
Free Aim / Melee Lock On - Right Mouse Button
VEHICLES
Steer Left - A
Steer Right - D
Accelerate - W
Brake - S
Handbrake - Space
Lean Forward - Left Shift
Lean Back - Left Ctrl
Exit Vehicle - F
Shoot - Left Mouse Button
Helicopter Shoot - Left Mouse Button
Free Aim - Right Mouse Button
Next Weapon - Q
Previous Weapon - Z
Headlights - H
Hotwire - W / S
Horn - G
Look Behind - C
Change Camera - V
Cinematic Camera - Caps Lock
Next Radio Station - Wheel Up
Previous Radio Station - Wheel Down
Next Song (Independence FM) - N
Previous Song (Independence FM) - B
Turn Off Radio - X
Drop Weapon (GTA Race Only) - R
HELICOPTERS
Throttle Up / Down - W / S
Rotate Left / Right - Numpad 4 / Numpad 6
Bank Left / Right - A / D
Pitch Forward / Back - Numpad 8 / Numpad 2
Rotate Camera - Hold R-Mouse and Move
Shoot - Numpad 0 / Left Mouse Button
COMBAT
Target Lock - Right Mouse Button
Punch 1 - Left Mouse Button
Punch 2 - R
Kick (While Locked On) - Q
Block (While Locked On) - Space
WEAPON SHORTCUTS
Unarmed - 1
Melee - 2
Handgun - 3 (Also Works in Vehicle)
Shotgun - 4
Submachine Gun - 5 (Also Works in Vehicle)
Automatic Rifle - 6
Sniper Rifle - 7
Heavy Weapon - 8
Grenade / Molotov - 9 (Also Works in Vehicle)
Special - 0
CONTROLLER:
IN VEHICLE
Left Trigger - Brake/Reverse
Left Bumper - Fire Weapon
Right Trigger - Accelerate
Right Bumper - Handbrake
Left Stick - Steering
Right Stick - Rotate Camera/Aiming
Left Stick button - Horn/Engage Slow Motion while in Cinematic Camera
Right Stick button - Look Behind
Y button - Exit Vehicle
B button - Cinematic Camera/Mobile Phone Back/Hangup
A button - Handbrake/Mobile Phone Forward/Answer
X button - Change Weapon/(Hold) Headlights
D-pad UP - Mobile Phone Up/Use Mobile Phone
D-pad RIGHT - Next Radio Station/(Hold) Next User Song
D-pad DOWN - Mobile Phone Down/Skip Mobile Conversation/Zoom Out Mini-Map/(Hold) Turn Off Radio
D-pad LEFT - Previous Radio Station/(Hold) Previous User Song
BACK button - Cycle Camera Modes/(Hold) Capture Clip
START button - Pause Menu
ON FOOT
Left Trigger - Target Lock On/(Half Hold) Free Aim
Left Bumper - Pick Up/Context
Right Trigger - Fire Weapon/(Half Hold) Free Aim
Right Bumper - Enter/Exit Cover
Left Stick - Movement
Right Stick - Rotate Camera/Switch Targets
Left Stick button - Crouch
Right Stick button - Look Behind/Zoom Aim (When Targeting)
Y button - Enter Vehicle/Mount Ladder/Melee (Alternative Punch/Counter)
B button - Reload Weapon/Mobile Phone Back/Hangup/Melee (Punch/Counter)
A button - (Hold) Run/(Tap) Sprint/Mobile Phone Forward/Answer/Melee (Block/Dodge)
X button - Jump/Climb/Melee (Kick)
D-pad UP - Mobile Phone Up/Use Mobile Phone
D-pad RIGHT - Next Weapon
D-pad DOWN - Mobile Phone Down/Skip Mobile Conversation/Zoom Out Mini-Map
D-pad LEFT - Previous Weapon
BACK button - Cycle Camera Modes/(Hold) Capture Clip
START button - Pause Menu

Позднее попробую перевести, а пока смотрим что есть. Управление в целом ничем не отличается от GTA SA, кроме конечно новых функций, таких как: мобильник, стрельба из машины и т.д.